src/main/webapp/assets/common/module/city-picker/city-picker.js

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layui.define(['jquery'], function (exports) {
    var $ = layui.$;
    'use strict';
    if (typeof ChineseDistricts === 'undefined') {
        throw new Error('The file "city-picker.data.js" must be included first!');
    }
    var NAMESPACE = 'citypicker';
    var EVENT_CHANGE = 'change.' + NAMESPACE;

    // 城市选择类
    var CityPicker = function (element, options) {
        this.PROVINCE = 'provinceId';
        this.CITY = 'cityId';
        this.DISTRICT = 'districtId';

        this.$element = $(element);
        this.$dropdown = null;
        this.options = $.extend({}, CityPicker.DEFAULTS, $.isPlainObject(options) && options);
        this.active = false;
        this.dems = [];
        this.needBlur = false;
        this.init();
    };

    CityPicker.prototype = {
        constructor: CityPicker,
        init: function () {
            this.defineDems();
            this.render();
            this.bind();
            this.active = true;
            var _this = this;
            $(".icon_ca").on('click', function () {
                $("#" + this.PROVINCE).val();
                $("#" + this.CITY).val();
                $("#" + this.DISTRICT).val();
                _this.reset();
            });
        },

        render: function () {
            var p = this.getPosition(),
                placeholder = this.$element.attr('placeholder') || this.options.placeholder,
                textspan = '<span class="city-picker-span" style="' +
                    this.getWidthStyle(p.width) + 'height:' +
                    (p.height - 2) + 'px;line-height:' + (p.height - 1) + 'px;">' +
                    (placeholder ? '<span class="placeholder">' + placeholder + '</span>' : '') +
                    '<span class="title"></span><div class="arrow"></div>' + '<i class="icon_ca"></i></span>',

                dropdown = '<div class="city-picker-dropdown" style="left:0px;top:100%;' +
                    this.getWidthStyle(p.width, true) + '">' +
                    '<div class="city-select-wrap">' +
                    '<div class="city-select-tab">' +
                    '<a class="active" data-count="' + this.PROVINCE + '">省份</a>' +
                    (this.includeDem(this.CITY) ? '<a data-count="' + this.CITY + '">城市</a>' : '') +
                    (this.includeDem(this.DISTRICT) ? '<a data-count="' + this.DISTRICT + '">区县</a>' : '') + '</div>' +
                    '<div class="city-select-content">' +
                    '<div class="city-select province ' + this.PROVINCE + '" data-count="' + this.PROVINCE + '"></div>' +
                    (this.includeDem(this.CITY) ? '<div class="city-select ' + this.CITY + '" data-count="' + this.CITY + '"></div>' : '') +
                    (this.includeDem(this.DISTRICT) ? '<div class="city-select ' + this.DISTRICT + '" data-count="' + this.DISTRICT + '"></div>' : '') +
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